CN104477128A

CN104477128A - Method for controlling error-locking of mechanical door lock with car key inside

Info

Publication number: CN104477128A
Application number: CN201410693710.7A
Authority: CN
Inventors: 周冬; 田江; 冯超; 张启明; 徐萌
Original assignee: Dongfeng Motor Corp
Current assignee: Dongfeng Motor Corp
Priority date: 2014-11-26
Filing date: 2014-11-26
Publication date: 2015-04-01
Anticipated expiration: 2034-11-26
Also published as: CN104477128B

Abstract

The invention relates to the field of cars, and in particular relates to a method for controlling error-locking of a mechanical door lock with a car key inside. The method comprises the steps of sending a mechanical door locking signal to a car body controller through a mechanical door lock state switch when locking the mechanical door of the car; sending a car key state detection instruction to an IMMO (Immobiliser) coil at the car through the car body controller while controlling to lock the mechanical door; feeding back the detection result to the car body controller through the IMMO coil; controlling whether the mechanical door is unlocked by the car body controller according to the state of the car key. With the adoption of the method, a user does not need to remove the key in case of going out for a short time, which facilitates the users without bags, and the key can be prevented from.

Description

A kind of control method that mechanical door lock is locked by mistake when preventing inserted automobile key

Technical field

The present invention relates to automotive field, particularly relate to a kind of control method that mechanical door lock is locked by mistake when preventing inserted automobile key.

Background technology

Vehicle electronics door lock control system is one of control system the most complicated in body electronics.And the control of door lock relates to user's personal safety and safety of property.In automotive type exploitation, often run into that mechanical door lock is abnormal locks, by key lock in car, cause user cannot open car door.This just proposes very high requirement to the safety of vehicle electronics door lock control system, stability and fault-tolerance.Current automobile door lock control lines controls primarily of car body controller in the industry, after all car doors shut, receive at car body controller and perform all car doors when romote controlled locking order or centrally controrlled locking system order or mechanical door lock switch become blocking from released state and lock.Wherein more easily there is exception in mechanical door lock on-off signal, causes car body controller to gather by mistake.If stationary vehicle, key is on ignition lock, user gos out temporary when occurring that abnormal, wire harness bad contact causes door state abnormal from vehicle a period of time or mechanical door lock switch, car body controller performs locking by mistake, so user's key cannot take out vehicle, and this will bring great property to damage and inconvenience to user.For addressing this problem, notification number is that the patent application specification of CN 201457306 U discloses a kind of warning detecting inserted automobile key, this warning is by arranging theftproof chip on the key, and anti-theft antenna is set on anti-theft controller, anti-theft antenna utilizes low frequency radio frequency technology for detection key whether to be positioned at ignition lock lockhole, thus report to the police when key does not pull out, but because its technology is only to remind when forgetting extract key to user, the problem that automobile mechanical door lock is locked by mistake but fundamentally can not be solved.In addition, still there are some defects in this patent, namely user leaves vehicle at every turn and must extract car key, otherwise ring sound is reported to the police, this just brings trouble to the of short duration user gone out and do not carry handbag, meanwhile, long-term alarm can make us producing irritated mood, also causes noise pollution to environment.

Summary of the invention

The object of the present invention is to provide a kind of control method that mechanical door lock is locked by mistake when preventing inserted automobile key.It fundamentally solves the problem that automobile mechanical door lock is locked by mistake, makes user leave vehicle when not extracting automobile key, and without the need to worrying the problem that key lock cannot take out in car, for user brings larger safety.

Technical scheme of the present invention is: a kind of control method that mechanical door lock is locked by mistake when preventing inserted automobile key, when automobile mechanical door lock is locked, lock signal on mechanical door lock is sent to car body controller by mechanical door lock mode switch, car body controller is controlling to send the instruction of automobile key state-detection to the IMMO coil of automobile while mechanical door lock is locked, testing result is fed back to car body controller by IMMO coil, and whether car body controller controls the unblock of mechanical door lock according to the state of automobile key.

Further, if described IMMO Coil Detector is extracted to automobile key, described car body controller continues to perform mechanical door lock and to lock instruction;

If described IMMO Coil Detector is to inserted automobile key, described car body controller sends mechanical door lock unlock command to mechanical door lock mode switch, realizes mechanical door lock and unlocks.

Further, whether described car body controller sends whether the instruction of automobile key state-detection locks by mechanical door lock, whether whether Close All and car body controller are performing the control of instruction of locking to car door, only when car body controller do not perform lock instruction time mechanical door lock lock and car door Close All, car body controller just sends the instruction of automobile key state-detection.

Further, described mechanical door lock is unlocked, car door non-Close All time, they are all connected by low level signal with car body controller, described tool door lock lock and car door Close All time, low level signal on car body controller disconnects, if now car body controller does not perform instruction of locking, then car body controller sends the instruction of automobile key state-detection to the IMMO coil of automobile.

The invention has the beneficial effects as follows: fundamentally solve the problem that automobile mechanical door lock is locked by mistake, user vehicle when of short duration leave vehicle and do not extract car key, car body controller can not implement electric-mechanic locking instruction because mechanical door lock is locked by mistake to automobile, there will not be the problem that key cannot take out.Meanwhile, without the need to extracting automobile key when user goes out, for the user not carrying handbag brings facility, prevent the loss of key.Meanwhile, can not report to the police when key does not pull out again, avoid the interference to user, decrease noise pollution.And adopt IMMO Coil Detector key status, have employed the original antitheft parts of automobile, without the need to increasing other structures on automobile, structure is simple, with low cost.

Accompanying drawing explanation

Fig. 1 is annexation figure of the present invention;

Fig. 2 is control flow chart of the present invention;

Detailed description of the invention

In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.In addition, if below in described each embodiment of the present invention involved technical characteristic do not form conflict each other and just can mutually combine.

As shown in Figure 1, machine door mode switch is all connected with car body controller with door state switch.When vehicle condition meet have at least one not close in the unlocked or car door of mechanical door lock time, car body controller all receives low level signal, when machine door is locked and car door Close All, the low level that car body controller receives disappears, if now car body controller does not perform locking function, then trigger IMMO coil to the detection of automobile key.

As shown in Figure 2, when car body controller is for performing locking function, when automobile mechanical door lock, car door Close All, then car body controller performs mechanical door lock and to lock instruction, send the instruction of automobile key state-detection to the IMMO coil of automobile, whether IMMO Coil Detector car key has key in hole, when automobile key is not in car key hole simultaneously, car body controller can not receive the signal coming from IMMO coil, controls the process of locking and complete in car body controller.When automobile key is in car key hole, IMMO coil does not pull out signal to car body controller feedback key, and car body controller controls unlock command in sending machine door mode switch, and mechanical door lock unlocks.No matter mechanical door lock is that people is for locking or extremely locking; all do not affect the normal use of automobile; because adopt automobile key to realize in mechanical door lock locks at user vehicle; because automobile key is not in car key hole; IMMO coil can not send car key to car body controller and not pull out signal, therefore the normal mechanical that can not affect automobile is locked.And in vehicle traveling process, control is locked and can not be triggered key status detection during car body controller performs, so automobile can normally be locked in the process of moving, normal locking function during running car can not be affected.

The above, be only the specific embodiment of the present invention, it should be pointed out that any those of ordinary skill in the art are in the technical scope disclosed by the present invention, the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.

Claims

1. mechanical door lock when the preventing inserted automobile key control method of by mistake locking, it is characterized in that: when automobile mechanical door lock is locked, lock signal on mechanical door lock is sent to car body controller by mechanical door lock mode switch, car body controller is controlling to send the instruction of automobile key state-detection to the IMMO coil of automobile while mechanical door lock is locked, testing result is fed back to car body controller by IMMO coil, and whether car body controller controls the unblock of mechanical door lock according to the state of automobile key.

2. a kind of control method that mechanical door lock is locked by mistake when preventing inserted automobile key as claimed in claim 1, is characterized in that: if described IMMO Coil Detector is extracted to automobile key, and described car body controller continues to perform mechanical door lock and to lock instruction;

3. a kind of control method that mechanical door lock is locked by mistake when preventing inserted automobile key as claimed in claim 1, it is characterized in that: whether described car body controller sends whether the instruction of automobile key state-detection locks by mechanical door lock, whether whether Close All and car body controller are performing the control of instruction of locking to car door, only when car body controller do not perform lock instruction time mechanical door lock lock and car door Close All, car body controller just sends the instruction of automobile key state-detection.

4. a kind of control method that mechanical door lock is locked by mistake when preventing inserted automobile key as claimed in claim 3, it is characterized in that: described mechanical door lock is unlocked, car door non-Close All time, they are all connected by low level signal with car body controller, described tool door lock lock and car door Close All time, low level signal on car body controller disconnects, if now car body controller does not perform instruction of locking, then car body controller sends the instruction of automobile key state-detection to the IMMO coil of automobile.